Randovania vs Universal Pokémon Randomizer FVX

Randovania is a free, open-source randomizer for supported games on Windows, macOS, and Linux. It rearranges weapons, keys, and other items among locations, and can also change area connections, travel requirements, starting equipment, and starting location. Its randomization aims to keep games completable without glitches or exploits. Multiworld can distribute items among several games and players, including a session played alone, and the project lists integrations for the Prime games, Cave Story, Metroid Dread, AM2R, and Samus Returns. Multiworld requires a Discord account. There are no hard limits on players or worlds, but sessions above 30 have seen little testing. When disconnected from its server, Randovania retains collected-item information and sends it after reconnection, including after a restart. It only supports unmodified game files; Prime and Prime 2 require uncompressed GameCube ISO files. The Metroid Prime page specifies a GameCube ISO and either a modded Wii or Dolphin Emulator. Larger Multiworld sessions can be discussed with the community on Discord.

Universal Pokémon Randomizer FVX is a free, open-source desktop tool for changing data in vanilla core-series Pokémon games from Generations 1–7. It supports games for Game Boy, Game Boy Color, Game Boy Advance, Nintendo DS, and Nintendo 3DS, with Pokémon: Let’s Go, Pikachu! and Let’s Go, Eevee! excluded. Options cover Pokémon traits, evolutions, starters, moves, trainer and wild Pokémon, items, and type effectiveness. FVX adds palette randomization and custom player graphics, with support varying by generation: palettes are fully supported in Generations 1–3, partly supported in 4–5, and unavailable in 6–7; custom player graphics are limited to Generations 1–3. A seed and settings string can reproduce a randomization, and logs can be disabled to prevent spoilers during races. Users must provide their own ROM files. ROM hacks are not officially supported. For 3DS games, files must be decrypted; randomized output can be saved as CXI or LayeredFS. If a game update is loaded, LayeredFS is the only output option. The tool runs on Linux, macOS, and Windows.